Home / 801,217,650.76-1,105,686,850.12-443,991,394.46

Finding the Fourth Proportional to 801,217,650.76, 1,105,686,850.12 and 443,991,394.46

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Solution

The fourth proportional to 801,217,650.76, 1,105,686,850.12 and 443,991,394.46 is: 612,711,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,217,650.76 : 1,105,686,850.12 = 443,991,394.46 : x
  2. Step 2: Convert to fraction form
    801,217,650.76/1,105,686,850.12 = 443,991,394.46/x
  3. Step 3: Cross multiply
    801,217,650.76x = 1,105,686,850.12 × 443,991,394.46
  4. Step 4: Simplify right side
    801,217,650.76x = 490,915,446,422,518,080
  5. Step 5: Solve for x
    x = 490,915,446,422,518,080/801,217,650.76
  6. Step 6: Final answer
    x = 612,711,721.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.